Improvement in hinges



L. L. HALL.

` l Hinges.` l

No.l54,949. Patentedsept.15,1874.

UNITED STATES PATENT OFFICE.

LEVI L. HALL, 0E PAEKEESBUEG, wEs'T VIRGINIA.

IMPROVEMENT IN HINGES.

Specification forming part of Letters PatentNo. 154,949, dated September15, 1874 application filed July 25, 1874.

CASE B.

To all whom it may concern:

Be it known that I, LEVI L. HALL, of Parkersburg, county of Wood andState of West Virginia, have invented an Improvement in Hinges, of whichthe following is a specifica- 131011:

The object of this invention is to construct a four-leaved hinge, inwhich the liability 0f the breakage of any part, or the loosening of thescrews by which the leaves are secured, is obviated, or at least greatlylessened, by combining with the ordinary leaves or straps two extraleaves or wings of peculiar construction, hereinafter described, whichare knuckled to the pintle, and to be fastened, one against the side ofthe jamb which faces the edge of the door or shutter when closed, theother against the door or shutter edge. The leaves or straps are alsoknuckled to the pintle, and one attached to the outside of the jamb, atright angles to the leaf' or wing, just described as being also attachedto the jamb, the other leaf or strap being secured to the outside of thedoor or shutter at right angles to the leaf or wing already attached tothe edge. There is no novelty in the mere arrangement of the fourleaves, but in the peculiar construction of the two leaves or wings,fitting one within the other, which I will now proceed to describe.

In the drawings all the views, with one exception, are in perspective.

Figure l is a View of the entire hinge; Fig. 2 of the additional openleaf or wing A. Figs. 3 and 4 are views of the leaves or straps D and E.Fig. 5 is a View of the additional and smaller leaf or wing U; whileFig. 6 is a sectional view, showing the hinge as attached.

AThe same letters of reference are used throughout.

.a is the opening or frame-work of the leaf or wing A. B refers to thepintle, while' the letters b b, c c, d, and e c represent the knucklesof the different leaves. I have. illustrated my improvement inconnection with the ordinary strapfhinge, and to construct it I form theleaf or wing A like unto a frame,

can be forced loose.

f one side of which is left out, thus leaving two ends free, the upperone of which I knuckle to the pintle B at or near its top. The lower endI knuckle to the pintle B at or near its base. The smaller leaf or wing, C, is made of such relative size and shape that it will, after beingknuckled to the pintleB between the knuckles b b of the open leaf orwing A, iit within the opening or fram e-work a of the leaf or wing Awhen closed, bel the opening or frame-work a shaped as it may. Theleaves or straps D and E are knuckled 'to the pintle B, so that the leafor strap D can be fastened to the outside of the door or shutter, and.the leaf or strap E secured to the outside of the jamb, both in suchposition as will permit the attaching of the open leaf or wing A to theside of the jamb facing the edge of the door or shutter, the open leaf Abeing at right angles tothe plane of the door when closed 3 also thatthe smaller wing or leaf C can be screwed against the edge of the dooror shutter at right angles to the leaf or strap D, so that when thedooris closed the smaller leaf or wing C will fit within the opening orframework a of the open leaf or wing A, thereby throwing the strain,which, in case of upward or downward prying or wrenching, must be uponthe screws and the pintle B, nearly or quite upon the smaller wing orleaf C, which, fitting within the open leaf or wing A, renders itnecessary that the door or shutter be cut or broken away before thehinges Therefore,

I claimas my invention- A four-leaved hinge, consisting of the leave orstraps D and E, the open leaf or wing A, and the smaller leaf or wing C,all knuckled to the pintle B, in such manner that when the hinge isclosed the smaller wing or leaf C will lit within the opening orframe-work a of the open leaf or wing A, all substantially as shown anddescribed, for the purposes specified.

LEVI L. HALL. Witnesses:

JAMES R. IIEIsLEY,

A. L. MOYEN.

